Jacobson, who is currently the State Department's assistant secretary for Western Hemisphere affairs, has drawn flack from Republicans and some Democrats over her role in leading the Obama administration's negotiations with Cuba to restore relations.

Rubio has repeatedly criticized the president's handling of the island country, suggesting Obama is relaxing decades-old travel and trade rules without requiring political or human rights reforms in return.

He also wrote a letter to Jacobson last month about reports that a Hellfire missile was sent to Cuba after being used during a European training exercise.

"The fact that the administration, including you, have apparently tried to withhold this information from the congressional debate and public discussion over U.S.-Cuba policy is disgraceful," he said at the time.

A State Department official said Congress was briefed on the issue in February 2015.